Daily Sunspot Evaluation
Observation Sheet Sunday, 13 March 2005
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 3
- Number of spots (f)
- 28
- Relative number (R)
- 58
- Observer
- TG
- Reading
- all checks consistent
- File
- 20050313.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 5 | 10 | 47W | 202 | 50W | ~4 | |
| 2 | EAI – 21 | -6 | 01W | 156 | 04W | ~12 | |
| 3 | HH – 2 | -7 | 33E | 122 | 30E | 5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.